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"The following is a description of the book's content. The present book consists of two parts: Part One and Part Two. Part One is fundamentally theoretical; Part Two, which is a problem solution manual, is practical in nature. Part One begins with Chapter 1, which presents a comprehensive coverage of the principles of elementary mathematics, focusing on the fundamental concepts about percentages, ratios and proportions, simple and compound interests, as well as the properties of direct and indirect proportionalities. Chapter 2 gives additional treatment on elementary geometry, integrated with extended definitions of geometric terms, to build on relevant geometric concepts already acquired in grade 5. Parallel and perpendicular lines are examined; the different kinds of quadrilaterals are discussed, as well as areas of triangle, rectangle, parallelogram, and trapezoid, including concepts on prisms and pyramids. Chapter 3 deals with circular and spherical bodies. In particular, the lengths of circumferences and areas of circles, as well as concepts regarding cylinders and cones are considered from both theoretical and practical standpoints. Part two of the book, the solution manual, contains chapters 4 through 7. Chapters 4, 5, and 6 contain complete solutions and answers (with explanatory notes) to all of the Problems and Exercises included at the end of chapters 1, 2, and 3 in Part one. The solutions embody the methods and examples of dealing with typical problems and exercises with different levels of difficulty contributing to the learning environment as well as promoting the mastering of the materials and concepts presented. Chapter seven is composed of five aptitude tests, which feature typical problems and exercises within the context of the textbooks ""Modern Mathematics for Community Elementary Schools (Grade 5) and ""Principles of Modern Elementary Mathematics (Grade 6)""."

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9781490403540

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"J. Nyenetu Jarkloh is a Liberian-born graduate professional communications engineer, senior corporate manager, educator, practicing author and publisher. In Monrovia (Liberia), he attended the Amanda Caphart Elementary, Boatswain Junior High, Government Junior High, W. V. S. Tubman High, before enrolling at the University of Liberia (UL) in the College of Business. In the wake of Liberia's 1980 coup, based on excellent performance in his studies at the UL, he was granted a bilateral scholarship to pursue advanced studies in the former Soviet Union, where he earned bachelor and masters degrees in radio engineering from the Odessa State Polytechnic University (Ukraine) Upon return to his native country, Mr. Jarkloh had worked as a senior instructor in the Electronics Engineering Department at the W. V. S. Tubman Technical College (now Tubman Technical University) in Harper (Maryland County, Liberia), a part-time lecturer in mathematics (Numerical Analysis) at the University of Liberia, and also as Manager of Planning, Research & Development Department of the Liberia Telecommunications Corporation (L.T.C.) (now Liberia Telecommunications Authority). He also holds post-graduate professional certificates in telecommunications planning and management from the Satellite Transmission Systems Inc (Long Island, N.Y.), INTELSAT, and the United States Telecommunications Training Institute (Washington, D. C., U.S.A). As a Fellow of the International Telecommunications Union (ITU), Mr. Jarkloh had actively participated in the ITU's GMDSS project, which called for elaboration of national master plans from English-speaking African Countries for the Development of Maritime Radiocommunications services. He elaborated his country's ""National Master Plan for the Development of Maritime Radiocommunication Services in Liberia"", which he defended during the final workshop of said project at the International Center for Theoretical Physics in Trieste (Italy). Due to the Liberian Civil War, however, he was evacuated along with his family to the Ukraine where they presently live."

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